Installation plays a huge factor in the ultimate efficiency of your window replacement. A quality install will ensure your replacement windows perform as expected. A poor install can erase any benefits that caused you to replace your windows in the first place. Water penetration is one of the biggest concerns when it comes to window installation. Below are three main methods of window installation:
1. FULL REMOVAL
During a full removal install, the glass is removed from the existing frame. Next, the cladding of the home around the window is cut back to expose the nail fin of the existing window frame. The type of exterior cladding of your home-siding, stucco or brick, will determine how much is removed. The old nail fin frame is now exposed and removed. Next the house wrap/building paper is repaired and reapplied and the bottom sill has a waterproofing membrane applied to it.
Advantages
* Complete removal using a brick mould or nail fin
* Windows are completely sealed and secured behind the weather barrier
* Provides the best protection against water infiltration
* The exterior of the home looks as if the windows are original and trims can add to the general appearance of the home
* The windows will be the same size as the existing windows
Disadvantages
* Installation can be time consuming depending on the desired exterior finish
2. STUCCO/ REBATE FLANGE
Following the example above, after removing the glass, the installer will cut off the nail fin around the frame. This method allows the installer to remove the frame without having to cut back the homes exterior siding or stucco. The old frame is then removed from the opening, leaving the existing nail fin in place. The new window is installed with either a flush fin or stucco flange depending on the application. The new window is sealed directly to the exterior of home.
Advantages
* Quick and easy
Disadvantages
* The exterior seal or caulking must be checked regularly for shrinkage to prevent water penetration
* Window will be slightly smaller than the existing window
3. PIGGYBACKING
When this installation method is used, the glass is first removed from the old window. At this point the old frame may or may not be trimmed down. The new window is set in its place over the old frame, sealed and secured.
Advantages
* Quick and easy install
Disadvantages
* Leaves the old aluminum frame in place
* Shrinks the window size so the viewing area will decrease considerably
* The exterior seal or caulking must be checked regularly for shrinkage to prevent water penetration
When you have replacement windows installed, be sure to ask the installer a lot or questions regarding their methods. At Homeworks, we recommend and stand by the Full Removal method and feel the other two methods will not do your windows justice. If you are interested in having replacement windows installed, book a free in-home consultation, visit our showrooms or call 604.697.5700.
Tags: energy efficient windows, replacement windows, vinyl windows, window replacement, windows, windows Vancouver